I. ˈter-ə-ˌgȯid adjective
Etymology: New Latin pterygoides, from Greek pterygoeidēs, literally, shaped like a wing, from pteryg-, pteryx wing; akin to Greek pteron wing — more at feather
Date: 1722
: of, relating to, or lying in the region of the inferior part of the sphenoid bone of the vertebrate skull
II. noun
Date: 1831
: a pterygoid part (as a bone, muscle, or nerve)